Finding the Third Proportional to 3,651,596 and 7,880,560

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,596 : 7,880,560 = 7,880,560 : x
2. Step 2: Convert to fraction form
   3,651,596/7,880,560 = 7,880,560/x
3. Step 3: Cross multiply
   3,651,596x = 7,880,560 × 7,880,560
4. Step 4: Simplify right side
   3,651,596x = 62,103,225,913,600
5. Step 5: Solve for x
   x = 62,103,225,913,600/3,651,596
6. Step 6: Final answer
   x = 17,007,145.89